200.59% is the change from 170 to 511
Calculation steps:
[( 511 - 170 ) ÷ 170] x 100 = 200.59%
Formula
Percentage change = [(511 - 170) / 170] x 100
Subtract the new number by the original number
511 - 170 = 341
341 ÷ 170 = 2.0058823529411764
2.0058823529411764 x 100 = 200.59%